ALEXANDRIA, Va., April 9 -- United States Patent no. 12,273,445, issued on April 8, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"Key management method, device, and system" was invented by Longhua Guo (Shanghai), He Li (Shanghai), Rong Wu (Shenzhen, China) and Yizhuang Wu (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "This application provides a key management method, a device, and a system. The method includes: A terminal device sends a first application session establishment request message to a first application function network element, where the establishment request message carries identification information of a first key, and the first key is an authentication and key man...